Test method for navigation signal intensity of automobile navigation system

A navigation signal and navigation system technology, applied in the direction of radio wave measurement system, satellite radio beacon positioning system, measurement device, etc., can solve the problem that the car navigation system cannot receive reliably, the navigation signal is not considered, and the positioning of the navigation system is not accurate, etc. problems, to achieve the effect of reducing the inability to locate, reducing inaccurate positioning, and optimizing the installation position

Inactive Publication Date: 2015-08-05
CHONGQING CHANGAN AUTOMOBILE CO LTD
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Problems solved by technology

At present, there is no test device for calibrating the strength of the navigation received signal in the industry, which leads to the randomness of the selection of the installation position of the navigation system antenna, without considering the interference of the navigation signal by the external electromagnetic en

Method used

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  • Test method for navigation signal intensity of automobile navigation system
  • Test method for navigation signal intensity of automobile navigation system

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Embodiment Construction

[0014] The structure and test method of this device are further described below in conjunction with the accompanying drawings:

[0015] see figure 2 The test device for the strength of the navigation signal of the car navigation system comprises a navigation system antenna 1, a signal receiving module 2 of the navigation system, and a notebook computer 3 equipped with analysis software for the strength of the navigation signal.

[0016] The antenna 1 of the navigation system is installed on the vehicle body bracket to receive the position navigation signal.

[0017] The navigation system signal receiving module 2 is used to connect to the navigation system antenna to collect and transmit the signals received by the navigation system antenna.

[0018] The notebook computer 3 installed with navigation signal strength analysis software is connected to the navigation system signal receiving module through the computer USB port, and is used for analyzing and displaying the signal...

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Abstract

The invention provides a test method for navigation signal intensity of an automobile navigation system. The method comprises the steps that a navigation system antenna is installed at the selected design position in advance to receive navigation signal intensity which is compared with the size of navigation signal intensity of different installing positions of an automobile body so as to search the position of the maximum navigation signal intensity received by the navigation system antenna, and thus the position is confirmed to be the optimal installing position of the navigation system antenna. The navigation system is ensured to effectively receive correct signals by the method so that stable and reliable operation of the navigation system can be guaranteed.

Description

technical field [0001] The invention relates to a detection device for automobile electronic products, in particular to a test device for the strength of automobile navigation signals. Background technique [0002] The car navigation system is to receive the navigation signal of the vehicle's location through the navigation system antenna, and transmit the navigation signal to the navigation host through the coaxial cable to realize the function of navigation and positioning. With the increasing use of automotive wireless products, the complexity of the electromagnetic environment, and the impact of the body structure, it is necessary to perform a calibration test on the received signal strength of the navigation system antenna at the installation location to find the optimal installation location of the navigation system antenna. At present, there is no test device for calibrating the strength of the navigation received signal in the industry, which leads to the randomness ...

Claims

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Application Information

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IPC IPC(8): G01S19/23
CPCG01S19/23
Inventor 魏昌吴存学刘洋邹军王远宏
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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